Viscosity modifier for lubricating oils, additive composition for lubricating oils, and lubricating oil composition
a technology of viscosity modifier and lubricating oil, which is applied in the direction of lubricant composition, base material, additive, etc., to achieve excellent fluidity, good balance, and reduce viscosity
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example 1
[0271]To one of the feed openings of a 2 L volume pressurized continuous polymerization reactor equipped with a stirring blade and thoroughly purged with nitrogen, hexane solutions prepared with methylaluminoxane (MMAO-3A: TOSOH FINECHEM CORPORATION) at a concentration of 12.5 mmol / L, di-p-tolylmethylene(cyclopentadienyl)(octamethyloctahydridodibenzfluorenyl)zirconium dichloride at a concentration of 0.025 mmol / L and triisobutylaluminum (TiBA: TOSOH FINECHEM CORPORATION) at a concentration of 20.0 mmol / L are continuously introduced at flow rates of 0.014 L / hr, 0.014 L / hr and 0.045 L / hr, respectively. At the same time, to another feed opening of the continuous polymerization reactor, ethylene at a flow rate of 137.5 g / hr, butene-1 at a flow rate of 1380 g / hr, and hydrogen at a flow rate of 0.15 NL / hr are continuously provided. Purified and dehydrated n-hexane is continuously introduced at a total flow rate of 0.95 L / hr through the above two feed openings and an opening at the top of ...
example 2
[0273]To one of the feed openings of a 2 L volume pressurized continuous polymerization reactor equipped with a stirring blade and thoroughly purged with nitrogen, hexane solutions prepared by mixing methylaluminoxane (MMAO-3A: TOSOH FINECHEM CORPORATION) at a concentration of 12.5 mmol / L, di-p-tolylmethylene(cyclopentadienyl)(octamethyloctahydridodibenzfluorenyl)zirconium dichloride at a concentration of 0.025 mmol / L and triisobutylaluminum (TiBA: TOSOH FINECHEM CORPORATION) at a concentration of 20.0 mmol / L are continuously introduced at flow rates of 0.014 L / hr, 0.014 L / hr and 0.045 L / hr, respectively. At the same time, to another feed opening of the continuous polymerization reactor, ethylene at a flow rate of 137.5 g / hr, butene-1 at a flow rate of 1380 g / hr, and hydrogen at a flow rate of 0.15 NL / hr are continuously provided. Purified and dehydrated n-hexane is continuously introduced at a total flow rate of 0.95 L / hr through the above two feed openings and an opening at the to...
example 3
[0275]To one of the feed openings of a 2 L volume pressurized continuous polymerization reactor equipped with a stirring blade and thoroughly purged with nitrogen, a hexane solution prepared by mixing methylaluminoxane (MMAO-3A: TOSOH FINECHEM CORPORATION) at a concentration of 12.5 mmol / L and di-p-tolylmethylene(cyclopentadienyl)(octamethyloctahydridodibenzfluorenyl)zirconium dichloride at a concentration of 0.025 mmol / L and a hexane solution prepared with triisobutylaluminum (TiBA: TOSOH FINECHEM CORPORATION) at a concentration of 20.0 mmol / L are continuously introduced at flow rates of 0.020 L / hr and 0.045 L / hr, respectively. At the same time, to another feed opening of the continuous polymerization reactor, ethylene at a flow rate of 125 g / hr, butene-1 at a flow rate of 1200 g / hr, and hydrogen at a flow rate of 1.0 NL / hr are continuously provided. Purified and dehydrated n-hexane is continuously introduced at a total flow rate of 1.50 L / hr through the above two feed openings and...
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Abstract
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